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<h1 class="title">scene.h Example File</h1>
<span class="subtitle">graphicsview/boxes/scene.h</span>
<!-- $$$graphicsview/boxes/scene.h-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#ifndef SCENE_H</span>
<span class="preprocessor">#define SCENE_H</span>
<span class="comment">//#include <GL/glew.h></span>
<span class="preprocessor">#include "glextensions.h"</span>
<span class="preprocessor">#include <QtWidgets></span>
<span class="preprocessor">#include <QtOpenGL></span>
<span class="preprocessor">#include "roundedbox.h"</span>
<span class="preprocessor">#include "gltrianglemesh.h"</span>
<span class="preprocessor">#include "trackball.h"</span>
<span class="preprocessor">#include "glbuffers.h"</span>
<span class="preprocessor">#include "qtbox.h"</span>
<span class="keyword">class</span> QMatrix4x4;
<span class="keyword">class</span> ParameterEdit : <span class="keyword">public</span> <span class="type"><a href="qwidget.html">QWidget</a></span>
{
<span class="keyword">public</span>:
<span class="keyword">virtual</span> <span class="type">void</span> emitChange() <span class="operator">=</span> <span class="number">0</span>;
};
<span class="keyword">class</span> ColorEdit : <span class="keyword">public</span> ParameterEdit
{
Q_OBJECT
<span class="keyword">public</span>:
ColorEdit(<span class="type"><a href="../qtgui/qcolor.html#QRgb-typedef">QRgb</a></span> initialColor<span class="operator">,</span> <span class="type">int</span> id);
<span class="type"><a href="../qtgui/qcolor.html#QRgb-typedef">QRgb</a></span> color() <span class="keyword">const</span> {<span class="keyword">return</span> m_color;}
<span class="type">void</span> emitChange() override { <span class="keyword">emit</span> colorChanged(m_color<span class="operator">,</span> m_id); }
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> editDone();
<span class="keyword">signals</span>:
<span class="type">void</span> colorChanged(<span class="type"><a href="../qtgui/qcolor.html#QRgb-typedef">QRgb</a></span> color<span class="operator">,</span> <span class="type">int</span> id);
<span class="keyword">protected</span>:
<span class="type">void</span> mousePressEvent(<span class="type"><a href="../qtgui/qmouseevent.html">QMouseEvent</a></span> <span class="operator">*</span>event) override;
<span class="type">void</span> setColor(<span class="type"><a href="../qtgui/qcolor.html#QRgb-typedef">QRgb</a></span> color); <span class="comment">// also emits colorChanged()</span>
<span class="keyword">private</span>:
<span class="type"><a href="qgraphicsscene.html">QGraphicsScene</a></span> <span class="operator">*</span>m_dialogParentScene;
<span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span>m_lineEdit;
<span class="type"><a href="qframe.html">QFrame</a></span> <span class="operator">*</span>m_button;
<span class="type"><a href="../qtgui/qcolor.html#QRgb-typedef">QRgb</a></span> m_color;
<span class="type">int</span> m_id;
};
<span class="keyword">class</span> FloatEdit : <span class="keyword">public</span> ParameterEdit
{
Q_OBJECT
<span class="keyword">public</span>:
FloatEdit(<span class="type">float</span> initialValue<span class="operator">,</span> <span class="type">int</span> id);
<span class="type">float</span> value() <span class="keyword">const</span> {<span class="keyword">return</span> m_value;}
<span class="type">void</span> emitChange() override { <span class="keyword">emit</span> valueChanged(m_value<span class="operator">,</span> m_id); }
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> editDone();
<span class="keyword">signals</span>:
<span class="type">void</span> valueChanged(<span class="type">float</span> value<span class="operator">,</span> <span class="type">int</span> id);
<span class="keyword">private</span>:
<span class="type"><a href="qgraphicsscene.html">QGraphicsScene</a></span> <span class="operator">*</span>m_dialogParentScene;
<span class="type"><a href="qlineedit.html">QLineEdit</a></span> <span class="operator">*</span>m_lineEdit;
<span class="type">float</span> m_value;
<span class="type">int</span> m_id;
};
<span class="keyword">class</span> GraphicsWidget : <span class="keyword">public</span> <span class="type"><a href="qgraphicsproxywidget.html">QGraphicsProxyWidget</a></span>
{
<span class="keyword">public</span>:
GraphicsWidget() : <span class="type"><a href="qgraphicsproxywidget.html">QGraphicsProxyWidget</a></span>(<span class="number">0</span><span class="operator">,</span> <span class="type"><a href="../qtcore/qt.html">Qt</a></span><span class="operator">::</span>Window) {}
<span class="keyword">protected</span>:
<span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> itemChange(GraphicsItemChange change<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qvariant.html">QVariant</a></span> <span class="operator">&</span>value) override;
<span class="type">void</span> resizeEvent(<span class="type"><a href="qgraphicssceneresizeevent.html">QGraphicsSceneResizeEvent</a></span> <span class="operator">*</span>event) override;
<span class="type">void</span> paint(<span class="type"><a href="../qtgui/qpainter.html">QPainter</a></span> <span class="operator">*</span>painter<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="qstyleoptiongraphicsitem.html">QStyleOptionGraphicsItem</a></span> <span class="operator">*</span>option<span class="operator">,</span> <span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget) override;
};
<span class="keyword">class</span> TwoSidedGraphicsWidget : <span class="keyword">public</span> <span class="type"><a href="../qtcore/qobject.html">QObject</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
TwoSidedGraphicsWidget(<span class="type"><a href="qgraphicsscene.html">QGraphicsScene</a></span> <span class="operator">*</span>scene);
<span class="type">void</span> setWidget(<span class="type">int</span> index<span class="operator">,</span> <span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget);
<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>widget(<span class="type">int</span> index);
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> flip();
<span class="keyword">protected</span> <span class="keyword">slots</span>:
<span class="type">void</span> animateFlip();
<span class="keyword">private</span>:
GraphicsWidget <span class="operator">*</span>m_proxyWidgets<span class="operator">[</span><span class="number">2</span><span class="operator">]</span>;
<span class="type">int</span> m_current;
<span class="type">int</span> m_angle; <span class="comment">// angle in degrees</span>
<span class="type">int</span> m_delta;
};
<span class="keyword">class</span> RenderOptionsDialog : <span class="keyword">public</span> <span class="type"><a href="qdialog.html">QDialog</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
RenderOptionsDialog();
<span class="type">int</span> addTexture(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>name);
<span class="type">int</span> addShader(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>name);
<span class="type">void</span> emitParameterChanged();
<span class="keyword">protected</span> <span class="keyword">slots</span>:
<span class="type">void</span> setColorParameter(<span class="type"><a href="../qtgui/qcolor.html#QRgb-typedef">QRgb</a></span> color<span class="operator">,</span> <span class="type">int</span> id);
<span class="type">void</span> setFloatParameter(<span class="type">float</span> value<span class="operator">,</span> <span class="type">int</span> id);
<span class="keyword">signals</span>:
<span class="type">void</span> dynamicCubemapToggled(<span class="type">int</span>);
<span class="type">void</span> colorParameterChanged(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span><span class="operator">,</span> <span class="type"><a href="../qtgui/qcolor.html#QRgb-typedef">QRgb</a></span>);
<span class="type">void</span> floatParameterChanged(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span><span class="operator">,</span> <span class="type">float</span>);
<span class="type">void</span> textureChanged(<span class="type">int</span>);
<span class="type">void</span> shaderChanged(<span class="type">int</span>);
<span class="type">void</span> doubleClicked();
<span class="keyword">protected</span>:
<span class="type">void</span> mouseDoubleClickEvent(<span class="type"><a href="../qtgui/qmouseevent.html">QMouseEvent</a></span> <span class="operator">*</span>event) override;
<span class="type"><a href="../qtcore/qvector.html">QVector</a></span><span class="operator"><</span><span class="type"><a href="../qtcore/qbytearray.html">QByteArray</a></span><span class="operator">></span> m_parameterNames;
<span class="type"><a href="qcombobox.html">QComboBox</a></span> <span class="operator">*</span>m_textureCombo;
<span class="type"><a href="qcombobox.html">QComboBox</a></span> <span class="operator">*</span>m_shaderCombo;
<span class="type"><a href="../qtcore/qvector.html">QVector</a></span><span class="operator"><</span>ParameterEdit <span class="operator">*</span><span class="operator">></span> m_parameterEdits;
};
<span class="keyword">class</span> ItemDialog : <span class="keyword">public</span> <span class="type"><a href="qdialog.html">QDialog</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
<span class="keyword">enum</span> ItemType {
<span class="type">QtBoxItem</span><span class="operator">,</span>
CircleItem<span class="operator">,</span>
SquareItem<span class="operator">,</span>
};
ItemDialog();
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> triggerNewQtBox();
<span class="type">void</span> triggerNewCircleItem();
<span class="type">void</span> triggerNewSquareItem();
<span class="keyword">signals</span>:
<span class="type">void</span> doubleClicked();
<span class="type">void</span> newItemTriggered(ItemDialog<span class="operator">::</span>ItemType type);
<span class="keyword">protected</span>:
<span class="type">void</span> mouseDoubleClickEvent(<span class="type"><a href="../qtgui/qmouseevent.html">QMouseEvent</a></span> <span class="operator">*</span>event) override;
};
<span class="keyword">class</span> Scene : <span class="keyword">public</span> <span class="type"><a href="qgraphicsscene.html">QGraphicsScene</a></span>
{
Q_OBJECT
<span class="keyword">public</span>:
Scene(<span class="type">int</span> width<span class="operator">,</span> <span class="type">int</span> height<span class="operator">,</span> <span class="type">int</span> maxTextureSize);
<span class="operator">~</span>Scene();
<span class="type">void</span> drawBackground(<span class="type"><a href="../qtgui/qpainter.html">QPainter</a></span> <span class="operator">*</span>painter<span class="operator">,</span> <span class="keyword">const</span> <span class="type"><a href="../qtcore/qrectf.html">QRectF</a></span> <span class="operator">&</span>rect) override;
<span class="keyword">public</span> <span class="keyword">slots</span>:
<span class="type">void</span> setShader(<span class="type">int</span> index);
<span class="type">void</span> setTexture(<span class="type">int</span> index);
<span class="type">void</span> toggleDynamicCubemap(<span class="type">int</span> state);
<span class="type">void</span> setColorParameter(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>name<span class="operator">,</span> <span class="type"><a href="../qtgui/qcolor.html#QRgb-typedef">QRgb</a></span> color);
<span class="type">void</span> setFloatParameter(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qstring.html">QString</a></span> <span class="operator">&</span>name<span class="operator">,</span> <span class="type">float</span> value);
<span class="type">void</span> newItem(ItemDialog<span class="operator">::</span>ItemType type);
<span class="keyword">protected</span>:
<span class="type">void</span> renderBoxes(<span class="keyword">const</span> QMatrix4x4 <span class="operator">&</span>view<span class="operator">,</span> <span class="type">int</span> excludeBox <span class="operator">=</span> <span class="operator">-</span><span class="number">2</span>);
<span class="type">void</span> setStates();
<span class="type">void</span> setLights();
<span class="type">void</span> defaultStates();
<span class="type">void</span> renderCubemaps();
<span class="type">void</span> mousePressEvent(<span class="type"><a href="qgraphicsscenemouseevent.html">QGraphicsSceneMouseEvent</a></span> <span class="operator">*</span>event) override;
<span class="type">void</span> mouseReleaseEvent(<span class="type"><a href="qgraphicsscenemouseevent.html">QGraphicsSceneMouseEvent</a></span> <span class="operator">*</span>event) override;
<span class="type">void</span> mouseMoveEvent(<span class="type"><a href="qgraphicsscenemouseevent.html">QGraphicsSceneMouseEvent</a></span> <span class="operator">*</span>event) override;
<span class="type">void</span> wheelEvent(<span class="type"><a href="qgraphicsscenewheelevent.html">QGraphicsSceneWheelEvent</a></span> <span class="operator">*</span> event) override;
<span class="keyword">private</span>:
<span class="type">void</span> initGL();
<span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span> pixelPosToViewPos(<span class="keyword">const</span> <span class="type"><a href="../qtcore/qpointf.html">QPointF</a></span><span class="operator">&</span> p);
<span class="type"><a href="../qtcore/qtime.html">QTime</a></span> m_time;
<span class="type">int</span> m_lastTime;
<span class="type">int</span> m_mouseEventTime;
<span class="type">int</span> m_distExp;
<span class="type">int</span> m_frame;
<span class="type">int</span> m_maxTextureSize;
<span class="type">int</span> m_currentShader;
<span class="type">int</span> m_currentTexture;
bool m_dynamicCubemap;
bool m_updateAllCubemaps;
RenderOptionsDialog <span class="operator">*</span>m_renderOptions;
ItemDialog <span class="operator">*</span>m_itemDialog;
<span class="type"><a href="../qtcore/qtimer.html">QTimer</a></span> <span class="operator">*</span>m_timer;
GLRoundedBox <span class="operator">*</span>m_box;
TrackBall m_trackBalls<span class="operator">[</span><span class="number">3</span><span class="operator">]</span>;
<span class="type"><a href="../qtcore/qvector.html">QVector</a></span><span class="operator"><</span>GLTexture <span class="operator">*</span><span class="operator">></span> m_textures;
GLTextureCube <span class="operator">*</span>m_environment;
GLTexture3D <span class="operator">*</span>m_noise;
GLRenderTargetCube <span class="operator">*</span>m_mainCubemap;
<span class="type"><a href="../qtcore/qvector.html">QVector</a></span><span class="operator"><</span>GLRenderTargetCube <span class="operator">*</span><span class="operator">></span> m_cubemaps;
<span class="type"><a href="../qtcore/qvector.html">QVector</a></span><span class="operator"><</span><span class="type">QGLShaderProgram</span> <span class="operator">*</span><span class="operator">></span> m_programs;
<span class="type">QGLShader</span> <span class="operator">*</span>m_vertexShader;
<span class="type"><a href="../qtcore/qvector.html">QVector</a></span><span class="operator"><</span><span class="type">QGLShader</span> <span class="operator">*</span><span class="operator">></span> m_fragmentShaders;
<span class="type">QGLShader</span> <span class="operator">*</span>m_environmentShader;
<span class="type">QGLShaderProgram</span> <span class="operator">*</span>m_environmentProgram;
};
<span class="preprocessor">#endif</span>
</pre>
</div>
<!-- @@@graphicsview/boxes/scene.h -->
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